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...How to set the random seed to recreate the same random numbers? For example, 10 random numbers is generated from N(0,1), then "runif(10)" is used.What if I want to get the same 10 random numbers when I run runif(10) again? Is it possible?I think .Random.seed should be used here. Thanks. Xiaoxi [[alternative HTML version deleted]]

Hello R users, Can anyone recommend me any package that can be used to solve linear programming subject to nonlinear equality/inequality constraints. Rdonlp2 is now unavailable due to licensing issue. Thanks, Xiaoxi [[alternative HTML version deleted]]

...p" in package "Rsolnp" to solve a general nonlinear programming problem. But I got an error that " the leading minor of order 15 is not positive definite ". Can anybody tell what may cause this error? Does it have something to do with the starting values? Thanks a lot!!! Xiaoxi [[alternative HTML version deleted]]

..."lpSolve" package for linear programming. (1) the result contains both characters and numbers, e.g., Success: the objective function is 40.5, but I only need the number, can I only store the number? (2) How to set boundaries for variables? e.g., all variable are positive. Thanks a lot! Xiaoxi _________________________________________________________________ Hotmail has tools for the New Busy. Search, chat and e-mail from your inbox. N:WL:en-US:WM_HMP:042010_1 [[alternative HTML version deleted]]

Hello all, Can anybody tell me how to implement the heterogeneous bootstrap algorithm by the FEAR package. I only know there is a command (boot.sw98) for homogeneous bootstrap. Thanks a lot. Xiaoxi _________________________________________________________________ Hotmail is redefining busy with tools for the New Busy. Get more from your inbox. N:WL:en-US:WM_HMP:032010_2 [[alternative HTML version deleted]]